Law of the Lash (1947)

"SLASHING A NEW THRILL TRAIL ACROSS THE OLD WEST!"

When Decker's gang holds up a stage, henchman Lefty takes a lady's rings. Later lefty accidentally exposes the rings buying ammunition and Cheyenne sees them. When Lefty tries to shoot Cheyenne he is captured. Now Cheyenne wants the rest of the gang and their leader.